Car stop



J. F. MCDOWELL CAR STOP Filed Jan. 51, i955 Sept. 24, 1957 av 3oINVENTOR. James E McDowe/L W ATTORNEYS.

United States Patent Office Patented Sept. 24, 1957 AR TOP James F.McDowell, Kansas City, Kans., .ass ignor to Wasco Supply Compa y, KansasCity, Kans., a corporation of Nebraska Application January 31, 1955,Serial No.485,01,1 2 Claims (Cl. 104-258) This invention relates to .carstops, and more particularly to stops for attachment to rails forstopping of railroad .cards.

H r of I va io apparatuse have been used fo ppin of railroad cars and thl e and th mos common h v be n teps w ch ext n abov th ai conside a ldis n and h s memb for ng g n the e d o the car for stopping the same,.thus providing a bumper a ains h m i po -ion of t rail oad car a-th. rtha the wheel.

The principal object of the present invention is to provide .-a :stop etachah t the railroad rail h g a gripping action in combination with awedge member whereby the more pressure exerted on the stop proper by thewheels of the railroad car, the tighter the stop will grip the rail.

Other objects of the present invention are toprovide a stop in-two;pieces having jaws for engaging the head of a railroad rail andhaving a tapered space between the upper portion of the jaw and the headof the rail to receive a wedge; to provide means for clamping the twopiece stopmember on the rail; to provide means whereby one of the piecesmay be adjusted with respect to the other to fasten the sectionstogether; to provide strengthening ribs on the jaw portion of the stop;and to provide a device of this character which will be selftighteningwhen contacted by the wheels of the railroad car and one which is simpleand economical to manufacture.

In accomplishing these and other objects of the present invention, Ihave provided improved details of structure, the preferred forms ofwhich are illustrated in the accompanying drawings wherein:

Fig. l is a side elevational view showing my stop attached to a railroadrail.

Fig. 2 is a cross-sectional view taken on a line 2-2, Fig. 1.

Fig. 3 is a cross-sectional view taken on a line 3-3, Fig. 2.

Referring more in detail to the drawings:

1 designates a car stop embodying the features of my invention adaptedto engage the head of a car rail so that the wheel of a railroad car maycontact the same for stopping the car at the desired place. The stopproper comprises two mating sections 2 and 3 having their lower sideselongated and formed so as to provide facing jaws 4 and 5 for engagingthe head 6 of a railroad rail 7. It will be noted the lower faces of thejaws provide flanges 8 and 9 which engage the underneath sides of thehead as indicated at 10 and 11 for retaining the stop on the rail. Theflanges are spaced from the upper portion of the jaws providing a space12 between the rail and the upper portions of the jaws as indicated at13. The jaw portions are tapered as illustrated in Fig. 1 so that thespace above the rail head will also be tapered for a purpose latershown.

Sections 2 and 3 are provided slightly above the jaw portion thereofwith spaced openings 14, 15, 16 and 17 for receiving belts or the like18 retaining the device on he l- T sec on e longa ed a d he ve t ca poio s a d are som w a of a t an ula h pe w o s d 20 the e r u ded a n icae at 2 to u stan a ly e sh p o a a hoae t a whee (not sh wn) hic pr d sk n surface fo such Wheels T e upp po t on .2 o the se io s is pr ded itan opening 2 t r c a bo 4 .for clampin the sect on ethe A p ali y o Wasers 2- e Pro ded :fo t e b l 24 so h he uppe po tion of t e sections mabe pac d a d in su tanti l y e t ca P0 lowe p o the eof du to th poss ity o he hea of t ails bei g o d f erent dimensions,-

A t per d w g 2 pro ed o eng in on op o h h d of the ai in t e tape espace 12 o the iaws 4 a d .5 o the se ion and ex ends the t ll l n th ofthe j ws as best illu tra d ig- 1 s t a hen the wheels of the railroadcar strike the po ion,2 1,of the s op me r, pre urehe a ai s w l tend -th th ja membe on he e ge sad the rail and t u pro de sel -t ght ning stuc u e and pre ent the t p from be m g o se on h ra l s oul th hat o theb lts bec me l o ened o fo a y the r ason.-

Th sl o the edge 26 a il us ated in h s. 3 wi t l th m t sect ons s h lyfor a dly so tha th st ik g p t on 21 w ll c shchd h tahtially t th crcum eren e o th W ee s o the a l. ad a .lt will he noted t o of hebolts .18., whi en a e in the openn Zl to inclu ve, xtend t u h he openn s i on di ection n he othe two hcl th .oppos ted recr ch The open n s.15 an 3 in the. w a e ight y e ona ed a .he ti ustrat s aa fi .a d2 tg- 3. m. 2. o the ol e a he se ha ihs su h elohsa d open n thus allowihfo shades o th QQ QE .Q;?ld' just the vertical arrangement of suchsections to allow for alignment of the sections. The openings 14 and 16in the section 3 are also elongated so that the shank of the bolt nearthe head 29 will engage in such openings. The bolts 18 are known as hackbolts and the shanks are flattened as indicated at 18 to fit the holes14, 15, 16 and 17 to prevent turning thereof in the openings. Theelongated jaw portions 30 and 31 are provided with a plurality ofvertical ribs 32 for strengthening the jaws and also to provide asymmetrical structure. There is a substantially triangular opening 33 inthe sections and the forward and rear outer edges are also provided withribs 34 and 35 to add strength to the sections. I

It will be obvious from the foregoing that the tapered angles of thewedge and in the wheel stop castings or sections result in aself-tightening action when the stop is contacted by the wheels of arailroad car.

It will further be obvious that I have provided an improved car stopeasilyand quickly assembled on railroad rails for the purpose set forth.

What I claim and desire to secure by Letter Patent is:

1. A railroad car stop for attachment to the head of a rail having abase flange with an upwardly extending web terminating in a rail headhaving substantially parallel side faces and bottom surfaces inclinedoutwardly and upwardly from said web comprising, two mating sectionseach having elongated lower portions with facing jaw surfaces forengaging the side faces of the rail head, means on said lower portionsof the mating sections for engaging the inclined bottom surfaces of therail head, said mating sections each having vertically extending upperportions offset inwardly from the respective facing jaw surfaces andproviding lower faces spaced upwardly from the rail head, said upperportions having a plurality of openings above said lower surfaces, boltmeans extending through said openings for securing said mating sectionstogether and clamping the facing jaw surfaces on the side faces of therail head, means adjacent the upper end of said upper portions forholding said upper portions in spaced substantially parallel relationwhen the facing jaw surfaces are in clamping engagement with the sidesof the rail head, said mating sections being so constructed that whenthe means on the lower portions thereof engage the bottom surfaces ofthe rail head the lower surfaces of the vertically extending upperportions and top face of the rail head define a space taperedlongitudinally of the rail throughout the length of the mating sections,said lower faces being inclined laterally inwardly and upwardly from therespective facing jaw surfaces, and a wedge of substantially the samelength as the lower portions of the sections and of a width less thanthe width of the rail head, said wedge having upper and lower surfacesspaced and shaped to correspond to the tapered space between the top ofthe rail head and lower surfaces of the upper portions of the matingsections whereby tightening of all of the bolt means will clamp the jawsurfaces on the side faces of the rail head and the wedge to the top ofsaid rail head and striking the sections will tighten the sections onthe wedge and rail throughout the length of said sections.

2. A railroad car stop for attachment to the head of a rail having abase flange with an upwardly extending web terminating in a rail headhaving substantially parallel side faces and bottom surfaces inclinedoutwardly and upwardly from said web comprising, two mating sectionseach having elongated lower portions with facing jaw surfaces forengaging the side faces of the rail head, flanges extending inwardlyfrom said lower portions of the mating sections and having inclinedupper surfaces thereon for engaging the inclined bottom surfaces of therail head, said mating sections each having vertically extending upperportions offset inwardly from the respective facing jaw surfaces andproviding lower faces spaced upwardly from the rail head, said upperportions having a plurality of spaced openings adjacent to said lowersurfaces, bolt means extending through said openings for securing saidmating sections together and clamping the facing jaw surfaces inengagement with the side faces of the rail head, means adjacent theupper end of said upper portions for holding said upper portionstogether in spaced substantially parallel relation when the facing jawsurfaces are in clamping engagement with the side faces of the railhead, one edge of the mating sections having a curved surfacesubstantially on a radius corresponding to the radius of the peripheralsurface of a wheel of a railroad car for engagement thereby, said matingsections being so constructed that when the flanges thereon engage thebottom surfaces of the rail head the lower surfaces of the verticallyextending upper portions and top face of the rail head define a spacetapered longitudinally of the rail throughout the length of the matingsections, said lower faces being inclined laterally inwardly andupwardly from the respective facing jaw surfaces, and a wedge ofsubstantially the same length as the lower portions of the sections andof a width less than the width of the rail head, said wedge having upperand lower surfaces spaced and shaped to correspond to the tapered spacebetween the top of the rail head and lower surfaces of the upperportions of the mating sections whereby tightening of all of the boltmeans will clamp the jaw surfaces on the side faces of the rail head andthe wedge to the top of said rail head and striking the sections willtighten the sections on the wedge and rail throughout the length of saidsections.

References Cited in the file of this patent UNITED STATES PATENTS1,611,714 Bodkin Dec. 21, 1926 1,775,645 Kelly Sept. 16, 1930 1,814,253Leary July 14, 1931 1,869,976 Miller Aug. 2, 1932 2,209,881 FrankrnanJuly 30, 1940

